AUDIO — Flowchart No.8: Cassette tape does not load or playback is not possible
J-19flowchartFlowchart No.8 — Symptom
Flowchart No.8
SymptomCassette tape does not load or playback is not possible
Possible cause:
- Damaged cassette tape
- Damaged audio unit
- Open or short circuit in wiring harness
- Poor connection of connector
NOTE
B+: Battery positive voltage
Flowchart No.8 — Cassette tape does not load or playback is not possible
1
Step 1: Replace the cassette tape with a known good one and verify that the tape loads and operates normally.
Original tape does not load / Good tape does not load — Go to Step 3
return to step 3
Original tape does not load / Good tape loads — Replace original cassette tape (system OK)
Replace original cassette tape (system OK)
Original tape does not play / Good tape plays — Replace original cassette tape (system OK)
Replace original cassette tape (system OK)
Original tape does not play / Good tape does not play — Go to Step 2
2
Step 2: 1. Clean the heads and pinchroller by using a cassette tape player cleaning kit (commercially available). 2. Play the cassette tape and check the sound quality. 3. If the cassette tape still does not play, go to Step 3.
If the cassette tape still does not play — go to Step 3
3
Step 3: 1. Turn the ignition switch to ACC. 2. Measure the voltage at the terminals of the audio unit connector.
Terminal 1A: B+ — Measure voltage at terminal 1C
return to step 3
Terminal 1A: Other — Repair wiring harness (RADIO 15 A fuse—Audio unit)
Repair wiring harness (RADIO 15 A fuse—Audio unit)
Terminal 1C: Other — Repair wiring harness (ROOM 15 A fuse—Audio unit)
Repair wiring harness (ROOM 15 A fuse—Audio unit)
Terminal 1C: B+ — Turn ignition switch to LOCK and go to Step 4
4
Step 4: 1. Disconnect the audio unit connector. 2. Check for continuity between terminal 3A (B) of the audio unit connector and ground.
Continuity: No — Repair wiring harness (Audio unit—GND)
Repair wiring harness (Audio unit—GND)
Continuity: Yes — Replace audio unit
Replace audio unit